Last modified: Feb. 26, 2023, 9:56 a.m.
A common species throughout Belgium.
See also bladmineerders.be
The egg is laid within the leaf. The young larva makes a circular blotch mine in the leaves of trees or shrubs. Later instars drop to the ground in a case cut from the blotch. This case is subsequently replaced by a bivalved one made from two oval pieces of dead leaf. The caterpillar then eats dead leaves. It hibernates fully-fed in that case. Pupation in early spring in the case amongst leaf-litter.
The moths are active during the day.
One generation a year: from late April till the end of May.
Mainly on the leaves of Crataegus and Rosa, but also on different species of trees and shrubs.
Also egg deposition observed on Malus domestica and on Prunus mahaleb, 2 food plants not mentioned in literature (R. Meert, 2022)